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http://purl.uniprot.org/citations/10497187http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/10497187http://www.w3.org/1999/02/22-rdf-syntax-ns#typehttp://purl.uniprot.org/core/Journal_Citation
http://purl.uniprot.org/citations/10497187http://www.w3.org/2000/01/rdf-schema#comment"The tyrosine phosphatase SHP-1 functions as a negative regulator in hematopoietic cell development, proliferation, and receptor-mediated cellular activation. In Jurkat T cells, a major 68-kDa band and a minor 70-kDa band were immunoprecipitated by a monoclonal antibody against the SHP-1 protein-tyrosine phosphatase domain, while an antibody against the SHP-1 C-terminal 19 amino acids recognized only the 68-kDa SHP-1. The SDS-gel-purified 70-kDa protein was subjected to tryptic mapping and microsequencing, which was followed by molecular cloning. It revealed that the 70-kDa protein, termed SHP-1L, is a C-terminal alternatively spliced form of SHP-1. SHP-1L is 29 amino acids longer than SHP-1, and its 66 C-terminal amino acids are different from SHP-1. The C terminus of SHP-1L contains a proline-rich motif PVPGPPVLSP, a potential Src homology 3 domain-binding site. In contrast to SHP-1, tyrosine phosphorylation of SHP-1L is not detected upon stimulation in Jurkat T cells. This is apparently due to the lack of a single in vivo tyrosine phosphorylation site, which only exists in the C terminus of SHP-1 (Y564). COS cell-expressed glutathione S-transferase-SHP-1L can dephosphorylate tyrosine-phosphorylated ZAP70. At pH 7.4, SHP-1L was shown to be more active than SHP-1 in the dephosphorylation of ZAP70. At pH 5.4, SHP-1L and SHP-1 exhibited similar catalytic activity. It is likely that these two isoforms play different roles in the regulation of hematopoietic cell signal transduction."xsd:string
http://purl.uniprot.org/citations/10497187http://purl.org/dc/terms/identifier"doi:10.1074/jbc.274.40.28301"xsd:string
http://purl.uniprot.org/citations/10497187http://purl.org/dc/terms/identifier"doi:10.1074/jbc.274.40.28301"xsd:string
http://purl.uniprot.org/citations/10497187http://purl.uniprot.org/core/author"Yu C.L."xsd:string
http://purl.uniprot.org/citations/10497187http://purl.uniprot.org/core/author"Yu C.L."xsd:string
http://purl.uniprot.org/citations/10497187http://purl.uniprot.org/core/author"Burakoff S.J."xsd:string
http://purl.uniprot.org/citations/10497187http://purl.uniprot.org/core/author"Burakoff S.J."xsd:string
http://purl.uniprot.org/citations/10497187http://purl.uniprot.org/core/author"Jin Y.J."xsd:string
http://purl.uniprot.org/citations/10497187http://purl.uniprot.org/core/author"Jin Y.J."xsd:string
http://purl.uniprot.org/citations/10497187http://purl.uniprot.org/core/date"1999"xsd:gYear
http://purl.uniprot.org/citations/10497187http://purl.uniprot.org/core/date"1999"xsd:gYear
http://purl.uniprot.org/citations/10497187http://purl.uniprot.org/core/name"J. Biol. Chem."xsd:string
http://purl.uniprot.org/citations/10497187http://purl.uniprot.org/core/name"J. Biol. Chem."xsd:string
http://purl.uniprot.org/citations/10497187http://purl.uniprot.org/core/pages"28301-28307"xsd:string
http://purl.uniprot.org/citations/10497187http://purl.uniprot.org/core/pages"28301-28307"xsd:string
http://purl.uniprot.org/citations/10497187http://purl.uniprot.org/core/title"Human 70-kDa SHP-1L differs from 68-kDa SHP-1 in its C-terminal structure and catalytic activity."xsd:string
http://purl.uniprot.org/citations/10497187http://purl.uniprot.org/core/title"Human 70-kDa SHP-1L differs from 68-kDa SHP-1 in its C-terminal structure and catalytic activity."xsd:string
http://purl.uniprot.org/citations/10497187http://purl.uniprot.org/core/volume"274"xsd:string
http://purl.uniprot.org/citations/10497187http://purl.uniprot.org/core/volume"274"xsd:string
http://purl.uniprot.org/citations/10497187http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/10497187
http://purl.uniprot.org/citations/10497187http://www.w3.org/2004/02/skos/core#exactMatchhttp://purl.uniprot.org/pubmed/10497187
http://purl.uniprot.org/citations/10497187http://xmlns.com/foaf/0.1/primaryTopicOfhttps://pubmed.ncbi.nlm.nih.gov/10497187
http://purl.uniprot.org/citations/10497187http://xmlns.com/foaf/0.1/primaryTopicOfhttps://pubmed.ncbi.nlm.nih.gov/10497187